Travis gained 9 pounds during the holidays. he dieted and lost 14 pounds but gained 3 more when he went on vacation . by the end of the year he lost another 7 pounds. how much weight did he gain or lose?

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,